Obktamental-ceiliitg-setting apparatus



.l. M. GRIER.

ORNAMENTAL CEILING SETTING APPARATUS.

Patented Aug. 26, 1919.

2 SHEETS-SHEET 1- APPLICATION FILED IAN-23. I918.

'l'NB COLUMBIA PLANOGRAPN 9-. WASHINGTON, D- C J. M. GRIER.

ORNAMENTAL CEILING SETTING APPARATUS.

APPLICATION FILED JAN. 23. 1918.

1,3 1 4,325 Patented Aug. 26, 1919.

2 SHEETS-SHEET Z.

'rllu cnulmnm PLANOGRAPII C0-. WASHINGTON. D. 1:.

JOHN M. GRIER, OF SALT LAKE CITY, UTAH.

ORNAMENTAL-CEILING-SETTING APPARATUS.

Application filed January 23, 1918.

To all whom it may concern:

Be it known that I, JOHN M. Gnrnn, a citizen of the United States,residing at Salt Lake City, in the county of Salt Lake and State ofUtah, have invented certain new and useful Improvements in Ornamental-Ceiling-Setting Apparatus, of which the following is a specification.

My invention relates to apparatuses for placing and setting ornamentalceilings, and has for its object to provide an efiicient apparatus uponwhich may be placed sections or ornamental colfer panel ceilings andthen to raise said panels and hold them in place until they are set andsecured to form a ceiling.

These objects I accomplish with the apparatus illustrated in theaccompanying drawings in which s1m1lar letters and mu morals ofreference indicate like parts throughout the several figures and asdescribed in the specification forming a part of this application andpointed out in the appended claims.

In the drawings in which I have shown a substantial embodiment of myinvention Figure 1 is an elevation of my apparatus shown in position inthe corner of a room and with a section of a cofl'cr panel thereon readyto be raised, held and secured in place in the corner of the roomcontiguous the cornice, parts cut away. Fig. 2 is an elevation of theapparatus with the same section raised and secured in place, parts cutaway. Fig. 3 is an end view of the apparatus with a section of theceiling panel thereon ready to be raised into position. Fig. 4 is afragment of a ceiling after the same has been set in place with myapparatus. Fig. 5 is an end elevation of the detachable rack, and Fig. 6is an end view of the platform operable in the rack with portions of theropes cut away. Fig. 7 is a side elevation of the platform showing amodification for curved table or top' used When an arched ceiling isrequired, and with the knock-down features shown in dotted lines.

It is often found diflicult to handle, hold and secure cofi'er panels ofa ceiling, on account of weight and the rigidity with which theymust beheld in place while the setting takes place. The workmen must frequentlywalk around on scaffolding under the panels and on which the panelsaresecured thereby breaking the plastic cement while the chemical changesare taking place Specification of Letters Patent.

Patented Aug. 26, 1919.

Serial No. 213,426.

in the cement, and I have invented an apparatus consisting of ascaffolding, a rack mounted thereon which may be knocked down, and anadjustable platform operable 1n sald rack upon which the ornamentalcofler panels for a ceiling may be placed, raised Into position and heldrigidly in place while the workmen fasten the sections of the ee1l1ng tothe suspended frame work.

The scaffolding consists of a top or floor A supported by braces B uponwhich the rack C is mounted. The said rack is made of piecesdetachablyfastened together by bolts and nuts and consists of the cross beams 1and 2 and the posts 3 upon which are provided tenons to fit in mortisescut in the said beams 1 and 2. Angled braces 4 set into the posts 3 andbeams 1, with the longitudinal ties 5 and angled braces 6 constitute therack. The platform D is provided to operate within the rack C, andconsists of the uprights 7, one at each corner, to which are bolted thecross pieces 8, one at each end, and side pieces 9, one for each side,with angled braces 10, and the top or table 11. This may be flat asshown in Figs. 1, 2, 3, 5 and 6 or curved as shown in Fig. 7 at 12.Blocks 13 are fastened to the cross beam 2, and similar blocks 14 aresecured to the cross beam 8 which blocks with the ropes 15 form theblocks and tackles by which the platform D is raised and lowered in thesaid rack C. A free space is provided on all sides between the saidplatform D and therack C. I use ropes for the tackles instead of wirecables for the reason that ropes are more flexible, and it is necessarythat the means used to hold the said platform D in what might well becalled the setting position, must not yield longitudinally but be freeto move laterally, in order that when the panels are raised and held inposition for setting on the ceiling, the workmen may walk around on' thescaffold A without their actions, movements or weight imparting anyshock or movement to the panel.

The. operation of my apparatus is as fol-' 1ows:-

The scafi'old is erected in the room with the floor thereof atpractically seven feet below the frame work to which the ceilin I panelsare to be fastened, this frame W01; usually consists of light channel orangle irons a crossing at right angles and sus pended from the concreteslabs ,or joists b of the room, by short rods a The rack C isassembledby placing the tenons of the post 3 in the mortises of the beams 1 and2, and with the braces 4 in position. The sides of the rack are thenbolted in place after the platform D has been assembled Within the rack.The rack and platform are both so constructed that they may be easilyknocked down, as it is frequently necessary to move around or underceiling beams. With the cornice 6 run in place on the metal furring (Z,the coifer panels which have been previously prepared, are placed on theplatform. The blocks and tackles are mounted on the cross pieces 8 ofthe platform D and the beams 2 of the rack C. When the ropes 15 arepulled longitudinally over the blocks 13 and 14:, the platform D and'coffer panel 7 thereon will be raised and may be held in position byfastening the said ropes, While the Workmensecure the panel in place.The securing or fastening of the section of the panels is by using longfibered'material such as waste, hemp and rope. pieces, which has beenclipped and saturated in casting plaster,

a plastic'cement used for such purposes and looping it over the saidframe work and cementing'the ends of said fiber to the back or upperside of said panels. When the said casting plaster has set the panelswill be firmly held in place, and the platform D and rack C'may be movedand used in setting the next panel. The use of ropes 15 on the blocks 13and let to raise and lower the said platform D and hold it in the raisedposition, and the free space between the said platform D and rack C willallow the workmen to Walk around on the scaffold withoutin any waymoving the platform or in anyunintentional way imparting a shock ormovement to the panel while the said casting plaster is settingyet'leave the panel Having thus described my invention Idesire to secureby Letters Patent and claim 1. In an apparatus of the class described Jthe combination With a scaffold; of a rack mounted thereon havingdetachable sldes and ends; a platform operable within said rackandspaced on all sides 'f-rom'the frames composing said rack; and blocksand tackle on each end of said platform and rack to raise and loWer saidplatform within said rack. a I

2. In an apparatus of the class described the combination with ascaffold; of a rack "mounted thereon; a platform having less dimensionsthan said rack to provide a free space between the relatively movableWalls of the rack and said platform; and blocks and ropes operablethereon to 'raise and lower said platform within said rack and retain'it in position free at all times from contact with said rack.

'3. A coffer panel setting apparatus comprising a scaffold; a rack to bemounted on said scaffold; a platform of less dimensions than said rackoperable therein with a free space between its outer dimensions and theinner dimension of said rack; and means to raise and lower saidplat-form within said rack;

In testimony whereof I have afliXed my signature. I

J QHN M. GRIER.

copies of this patent may be obtained for five cents each,lay-addressing the Commissioner of Patents, i, Washington, D. G.

